advent-of-code/2022/cpp/01/answer.cpp
2023-08-02 11:50:10 +02:00

69 lines
1.6 KiB
C++

// AOC - 2022 - 01
#include "answer.hpp"
#include <cstdlib>
#include <iostream>
#include <fstream>
std::vector<Input> get_input(const char * filename){
std::ifstream stream(filename);
std::string str;
std::vector<Input> ret;
ret.push_back(*new Input());
while (getline(stream, str)){
if (str.length() == 0)
ret.push_back(*new Input());
else
ret.back().calories.push_back(stoi(str));
}
return ret;
}
std::string get_result(std::vector<Input> inputs){
std::string ret;
#if PART==1
uint max_sum = 0;
for (auto& inp: inputs){
uint local_sum = 0;
for (auto& n : inp.calories)
local_sum += n;
std::cout << local_sum << std::endl;
if (local_sum > max_sum)
max_sum = local_sum;
}
ret = std::to_string(max_sum);
std::cout << ret << std::endl;
#else
std::vector<uint> top3(3);
for (int i = 0; i < 3; i++){
uint max_sum = 0;
size_t max_idx = -1;
size_t idx = 0;
for (auto& inp: inputs){
uint local_sum = 0;
for (auto& n : inp.calories)
local_sum += n;
std::cout << local_sum << std::endl;
if (local_sum > max_sum) {
max_sum = local_sum;
max_idx = idx;
}
idx++;
}
top3.push_back(max_sum);
inputs.erase(inputs.begin() + max_idx);
}
uint sum = 0;
for (auto& n : top3)
sum += n;
ret = std::to_string(sum);
std::cout << ret << std::endl;
#endif
return ret;
}